First, Crystal reports is a 32 bit application, there is no 64 bit version of it.
Second, CR for VS is now the only SDK package for Crystal Reports and available from a link below and no longer connects to BOE.
BOE .NET is a different package available from Service Market Place, requires a log in and support Contract.
Have a look at the download page, it notes what version works with what version:
Use the most recent SP, we don't patch them, they are full builds and SP 18 will work with any version of VS, except VS 2016 RC build.
Don
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